[Shotimes] Oxygen Sensor Question

[Carl Prochilo]

Barry,  Your best bet is to post the codes you got.  Or better still, pull
them again yourself.  You can optionally clear the codes first so you are
staring with a clean slate.  Drive the car.  As soon as the CEL comes on,
pull the codes again.  Hopefully you will only get one.  If you still get
multiple codes, fix the first one and then move on.

Part of the engine diagnostic capability is a cylinder balance test.  This
test should turn up something if there was a problem with one of the
injectors.

I've had a bad cam sensor that caused a CEL to come on after driving the
car for a while.  However, the light was also accompanied by a stumble. 
After about 20 seconds, the stumble would disappear and the light would go
out.  The stored code clearly pointed out the sensor, so it was reasonably
simple to diagnose.

Replacing an O2 sensor is simple.  Unplug the wire from the harness, and a
box wrench will do the rest.

BTW, I am in the "donate to the O2 sensor fund".  Twice.  I am much more
skeptical about the wearout on these parts now.
-- 
Cheers,
Carl Prochilo
92 Ultra Red Crimson

On Mon, November 22, 2004 1:03 am, Barry Hayes said:
> So what are the symptoms of o2 sensor failure?
> I am getting an intermittent CEI light. It comes on about 5 minutes
> after startup, and will come & go  throughout the trip. I can make it go
> away by pushing it a little hard out of a toll booth or passing lane but
> it tends to return. AZ ran codes for me and got possible cam sensor,
> canister purge sensor, and rear o2 sensor "indicated by a lean condition
> on bank 2".  Cam sensor was changed 60k ago. I assume the o2 is factory
> at 129k. Car runs well although the 120k has never been done. (and I
> don't know about the 60k,that was before I owned it. Sucks to be broke).
> The o2 seems the most reasonable guess, but what do you all think? Also,
> how big a pita is the change (I do have the socket)? Any hints?
>
> thanks
>
> Barry Hayes
> 95 mtx all original (means rusted solid).
>
> --
> "It's all in the mind ya know"- George Harrison
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